12.8.1 Supported image types

Graphics Ports supports Bitmaps and compressed bitmaps (BMP and DIB files). It uses Operating System-specific libraries to support a range of other image types as follows:

OS

Library

Supported Image Types

Windows

gdiplus.dll

GIF, JPEG, PNG, TIFF, EMF

Mac OS X

Cocoa

GIF, JPEG, TIFF, PICT and many others.

Also EPS, PDF

X/Motif

imlib

GIF, JPEG, PNG, TIFF, XPM, PGM, PPM

Functions which load images from a file attempt to identify the image type from the file type. Files of type
bmp
and
dib
are loaded by LispWorks code, files of other types are loaded by the Operating System-specific library.